Good stretches and exercises (help me and my 6 chins!)

I know that stretching and working out now are the best way to keep weight gain in check, make labor go more smoothly, lessen aches and stiffness, help our bodies bounce back easier after labor, yadda yadda yadda. However, I attempted prenatal yoga and I find that I just don't have the balance to do the stuff in the DVD that I tried and honestly it's not like yoga was before I got pregnant when it was actually enjoyable lol. It sucks now. Without having a way to keep my weight under control, and to keep myself limber, I feel like I'm just an unattractive pile of blubber. When I sit for longer then a half hour, my body gets so stiff it might as well be going into rigormortis. I know I could look exercises and stuff up online but I'd rather ask you ladies what stretches and exercises work best for you at this stage or what you've learned from past experience in pregnancy cuz I figured that's more reliable then google. Help me!

Cat-cow pose and tailor stretches are supposed to be good. I walk a couple times a week for about an hour. And I have been doing Suzanne Bowen's Long and Lean Prenatal Workout and it very good. more Pilates type moves and some modified yoga stuff.

Which yoga DVD did you try? I've been using Shiva Rea's Prenatal Yoga, and she includes lots of modifications to help with balance - if you follow the 3rd trimester woman, you do a lot with a chair for balance/support.

I agree with try walking. I'm surprised your yoga video had lots of balance exercises. I do a video from Parents (the magazine) and most of the exercises are on the floor or holding onto a chair. Also lifting light weights would be good too.